What are the numbers divisible by 121?
121, 242, 363, 484, 605, 726, 847, 968, 1089, 1210, 1331, 1452, 1573, 1694, 1815, 1936, 2057, 2178, 2299, 2420, 2541, 2662, 2783, 2904, 3025, 3146, 3267, 3388, 3509, 3630, 3751, 3872, 3993, 4114, 4235, 4356, 4477, 4598, 4719, 4840, 4961, 5082, 5203, 5324, 5445, 5566, 5687, 5808, 5929, 6050, 6171, 6292, 6413, 6534, 6655, 6776, 6897, 7018, 7139, 7260, 7381, 7502, 7623, 7744, 7865, 7986, 8107, 8228, 8349, 8470, 8591, 8712, 8833, 8954, 9075, 9196, 9317, 9438, 9559, 9680, 9801, 9922, 10043, 10164, 10285, 10406, 10527, 10648, 10769, 10890, 11011, 11132, 11253, 11374, 11495, 11616, 11737, 11858, 11979, 12100, 12221, 12342, 12463, 12584, 12705, 12826, 12947, 13068, 13189, 13310, 13431, 13552, 13673, 13794, 13915, 14036, 14157, 14278, 14399, 14520, 14641, 14762, 14883, 15004, 15125, 15246, 15367, 15488, 15609, 15730, 15851, 15972, 16093, 16214, 16335, 16456, 16577, 16698, 16819, 16940, 17061, 17182, 17303, 17424, 17545, 17666, 17787, 17908, 18029, 18150, 18271, 18392, 18513, 18634, 18755, 18876, 18997, 19118, 19239, 19360, 19481, 19602, 19723, 19844, 19965, 20086, 20207, 20328, 20449, 20570, 20691, 20812, 20933, 21054, 21175, 21296, 21417, 21538, 21659, 21780, 21901, 22022, 22143, 22264, 22385, 22506, 22627, 22748, 22869, 22990, 23111, 23232, 23353, 23474, 23595, 23716, 23837, 23958, 24079, 24200, 24321, 24442, 24563, 24684, 24805, 24926, 25047, 25168, 25289, 25410, 25531, 25652, 25773, 25894, 26015, 26136, 26257, 26378, 26499, 26620, 26741, 26862, 26983, 27104, 27225, 27346, 27467, 27588, 27709, 27830, 27951, 28072, 28193, 28314, 28435, 28556, 28677, 28798, 28919, 29040, 29161, 29282, 29403, 29524, 29645, 29766, 29887, 30008, 30129, 30250, 30371, 30492, 30613, 30734, 30855, 30976, 31097, 31218, 31339, 31460, 31581, 31702, 31823, 31944, 32065, 32186, 32307, 32428, 32549, 32670, 32791, 32912, 33033, 33154, 33275, 33396, 33517, 33638, 33759, 33880, 34001, 34122, 34243, 34364, 34485, 34606, 34727, 34848, 34969, 35090, 35211, 35332, 35453, 35574, 35695, 35816, 35937, 36058, 36179, 36300, 36421, 36542, 36663, 36784, 36905, 37026, 37147, 37268, 37389, 37510, 37631, 37752, 37873, 37994, 38115, 38236, 38357, 38478, 38599, 38720, 38841, 38962, 39083, 39204, 39325, 39446, 39567, 39688, 39809, 39930, 40051, 40172, 40293, 40414, 40535, 40656, 40777, 40898, 41019, 41140, 41261, 41382, 41503, 41624, 41745, 41866, 41987, 42108, 42229, 42350, 42471, 42592, 42713, 42834, 42955, 43076, 43197, 43318, 43439, 43560, 43681, 43802, 43923, 44044, 44165, 44286, 44407, 44528, 44649, 44770, 44891, 45012, 45133, 45254, 45375, 45496, 45617, 45738, 45859, 45980, 46101, 46222, 46343, 46464, 46585, 46706, 46827, 46948, 47069, 47190, 47311, 47432, 47553, 47674, 47795, 47916, 48037, 48158, 48279, 48400, 48521, 48642, 48763, 48884, 49005, 49126, 49247, 49368, 49489, 49610, 49731, 49852, 49973, 50094, 50215, 50336, 50457, 50578, 50699, 50820, 50941, 51062, 51183, 51304, 51425, 51546, 51667, 51788, 51909, 52030, 52151, 52272, 52393, 52514, 52635, 52756, 52877, 52998, 53119, 53240, 53361, 53482, 53603, 53724, 53845, 53966, 54087, 54208, 54329, 54450, 54571, 54692, 54813, 54934, 55055, 55176, 55297, 55418, 55539, 55660, 55781, 55902, 56023, 56144, 56265, 56386, 56507, 56628, 56749, 56870, 56991, 57112, 57233, 57354, 57475, 57596, 57717, 57838, 57959, 58080, 58201, 58322, 58443, 58564, 58685, 58806, 58927, 59048, 59169, 59290, 59411, 59532, 59653, 59774, 59895, 60016, 60137, 60258, 60379, 60500, 60621, 60742, 60863, 60984, 61105, 61226, 61347, 61468, 61589, 61710, 61831, 61952, 62073, 62194, 62315, 62436, 62557, 62678, 62799, 62920, 63041, 63162, 63283, 63404, 63525, 63646, 63767, 63888, 64009, 64130, 64251, 64372, 64493, 64614, 64735, 64856, 64977, 65098, 65219, 65340, 65461, 65582, 65703, 65824, 65945, 66066, 66187, 66308, 66429, 66550, 66671, 66792, 66913, 67034, 67155, 67276, 67397, 67518, 67639, 67760, 67881, 68002, 68123, 68244, 68365, 68486, 68607, 68728, 68849, 68970, 69091, 69212, 69333, 69454, 69575, 69696, 69817, 69938, 70059, 70180, 70301, 70422, 70543, 70664, 70785, 70906, 71027, 71148, 71269, 71390, 71511, 71632, 71753, 71874, 71995, 72116, 72237, 72358, 72479, 72600, 72721, 72842, 72963, 73084, 73205, 73326, 73447, 73568, 73689, 73810, 73931, 74052, 74173, 74294, 74415, 74536, 74657, 74778, 74899, 75020, 75141, 75262, 75383, 75504, 75625, 75746, 75867, 75988, 76109, 76230, 76351, 76472, 76593, 76714, 76835, 76956, 77077, 77198, 77319, 77440, 77561, 77682, 77803, 77924, 78045, 78166, 78287, 78408, 78529, 78650, 78771, 78892, 79013, 79134, 79255, 79376, 79497, 79618, 79739, 79860, 79981, 80102, 80223, 80344, 80465, 80586, 80707, 80828, 80949, 81070, 81191, 81312, 81433, 81554, 81675, 81796, 81917, 82038, 82159, 82280, 82401, 82522, 82643, 82764, 82885, 83006, 83127, 83248, 83369, 83490, 83611, 83732, 83853, 83974, 84095, 84216, 84337, 84458, 84579, 84700, 84821, 84942, 85063, 85184, 85305, 85426, 85547, 85668, 85789, 85910, 86031, 86152, 86273, 86394, 86515, 86636, 86757, 86878, 86999, 87120, 87241, 87362, 87483, 87604, 87725, 87846, 87967, 88088, 88209, 88330, 88451, 88572, 88693, 88814, 88935, 89056, 89177, 89298, 89419, 89540, 89661, 89782, 89903, 90024, 90145, 90266, 90387, 90508, 90629, 90750, 90871, 90992, 91113, 91234, 91355, 91476, 91597, 91718, 91839, 91960, 92081, 92202, 92323, 92444, 92565, 92686, 92807, 92928, 93049, 93170, 93291, 93412, 93533, 93654, 93775, 93896, 94017, 94138, 94259, 94380, 94501, 94622, 94743, 94864, 94985, 95106, 95227, 95348, 95469, 95590, 95711, 95832, 95953, 96074, 96195, 96316, 96437, 96558, 96679, 96800, 96921, 97042, 97163, 97284, 97405, 97526, 97647, 97768, 97889, 98010, 98131, 98252, 98373, 98494, 98615, 98736, 98857, 98978, 99099, 99220, 99341, 99462, 99583, 99704, 99825, 99946
- There is a total of 826 numbers (up to 100000) that are divisible by 121.
- The sum of these numbers is 41327671.
- The arithmetic mean of these numbers is 50033.5.
How to find the numbers divisible by 121?
Finding all the numbers that can be divided by 121 is essentially the same as searching for the multiples of 121: if a number N is a multiple of 121, then 121 is a divisor of N.
Indeed, if we assume that N is a multiple of 121, this means there exists an integer k such that:
Conversely, the result of N divided by 121 is this same integer k (without any remainder):
From this we can see that, theoretically, there's an infinite quantity of multiples of 121 (we can keep multiplying it by increasingly larger integers, without ever reaching the end).
However, in this instance, we've chosen to set an arbitrary limit (specifically, the multiples of 121 less than 100000):
- 1 × 121 = 121
- 2 × 121 = 242
- 3 × 121 = 363
- ...
- 825 × 121 = 99825
- 826 × 121 = 99946