1, 2, 4, 8
1, 3, 9
1, 2, 4, 13, 26, 52
1, 3, 23, 69
1, 3, 9, 11, 33, 99
1, 5, 41, 205
1, 3, 9, 13, 27, 39, 117, 351
1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500
1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 625, 640, 800, 1000, 1250, 1280, 1600, 2000, 2500, 2560, 3125, 3200, 4000, 5000, 6250, 6400, 8000, 10000, 12500, 12800, 15625, 16000, 20000, 25000, 31250, 32000, 40000, 50000, 62500, 64000, 78125, 80000, 100000, 125000, 156250, 160000, 200000, 250000, 312500, 320000, 390625, 400000, 500000, 625000, 781250, 800000, 1000000, 1250000, 1562500, 1600000, 1953125, 2000000, 2500000, 3125000, 3906250, 4000000, 5000000, 6250000, 7812500, 8000000, 10000000, 12500000, 15625000, 20000000, 25000000, 31250000, 40000000, 50000000, 62500000, 100000000, 125000000, 200000000, 250000000, 500000000, 1000000000
The factors of 16 are:
1, 2, 4, 8, 16
The factors of 25 are:
1, 5, 25
The factors of 26 are:
1, 2, 13, 26
The factors of 30 are:
1, 2, 3, 5, 6, 10, 15, 30
The factors of 54 are:
1, 2, 3, 6, 9, 18, 27, 54
The factors of 59 are:
1, 59
The factors of 61 are:
1, 61
The factors of 65 are:
1, 5, 13, 65
The factors of 77 are:
1, 7, 11, 77
The factors of 84 are:
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The factors of 6577 are:
1, 6577
The factors of 8454 are:
1, 2, 3, 6, 1409, 2818, 4227, 8454
The factors of 162530 are:
1, 2, 5, 10, 16253, 32506, 81265, 162530
256=2^8, then the factors are 2,22,23,24,25,26,27,28
1, 639 Then by inspection of the number 639 , we note that each number is a multiple of '3' . So '3' is a factor. Also , slightly more 'tricky'. If we add the digits of 639 ; 6 + 3 + 9 = 18 1 + 8 = 9 . This means that the number has '9' is a factor. NB This only applies to factors/multiples of '9' Finally, divide 639 by 71 and/or 213 . If you have a whole number answer (No decimals), then those numbers are also factors of 639. Hence 639/71 = 9 & 329 / 213 = 3 So allthe given numbers are factors of 639.
1, 3, 9, 27, 71, 213, 639, 1917
Just 2
The factors of 1,278 are: 1 2 3 6 9 18 71 142 213 426 639 1,278
That is incorrect. The common factors of 500 and 256 are 1, 2, 4.
The numbers below 500 having the most prime factors are 256 and 384 with eight prime factors each. Prime factorization is 256=2x2x2x2x2x2x2x2 and 84=2x2x2x2x2x2x2x3.
1, 3, 9, 71, 213, 639
Six factors.
It is: 256/500 times 100 = 51.2%
639 is a composite number. Its positive integer factors are: 1, 3, 9, 71, 213, 639
Prime factors of 256=2x2x2x2x2x2x2x2 (or 28)
The factors of 256 are: 1 2 4 8 16 32 64 128 256
The factors of 256 are: 1, 2, 4, 8, 16, 32, 64, 128, 256
The factors of 256 are 1, 2, 4, 8, 16, 32, 64, 128, and 256. Prime factors of 256 are 28. 256 = 28 so any splitting of this into two groups will work:
154 is the sum of the proper factors of 256.
256=2^8, then the factors are 2,22,23,24,25,26,27,28