Factors go into numbers, numbers go into multiples. Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42 Multiples of 42: 42, 84, 126 and so on.
The factors of 7 are 1 and 7. Neither of them are multiples of 42. Put the other way, 7, 14, 21 and 42 are multiples of 7 that are factors of 42.
Factors: 1, 3, 7, 21 Multiples: 21, 42, 63, 84 and so on.
Multiples don't add. Addends add, like 13 + 14 + 15 = 42 but I suspect you want factors, specifically prime factors. 2 x 3 x 7 = 42
1, 2, 3, 6, 7, 14, 21, 42 42, 84, 126 and so on
1344 is a multiple of 42. 42 is a factor of 1344. Factors go into numbers, numbers go into multiples.
Factors of 21 = 1, 3, 7, 21 Multiples of 21: 21, 42, 63, 84, 105, 126, 147 +21 . . .
Factors of 126 are 1, 2, 3, 6, 7, 18, 21, 42, 63, 126 Of those factors, 3, 6, 18, 21, 42, 63, 126 are multiples of 3.
Factors: 1, 3, 7, 21. Multiples: 21, 42, 63, 84, 105, 126, 147, 168, 189, 210 +21 . . .
the answer i know is 42 and 56 wrong! the multiples of 42 is 42,84,126,168 and etc.
Factors: 1, 2, 7, 14 Multiples: 14, 28, 42 and so on.
The first three multiples of 42 are 42, 84 and 126.