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The factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 115, and 210. The prime factorization is 2 x 3 x 5 x 7. Factor pairs are: 1 x 210 2 x 115 3 x 70 5 x 42 6 x 35 7 x 30 10 x 21 14 x 15
You can use 7 and 3 which equals to 21.
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Oh honey, you want the times table of 21? Well, buckle up buttercup because here it is: 21 times 1 is 21, 21 times 2 is 42, 21 times 3 is 63, and so on. Just keep adding 21 each time and you'll have the whole shebang.
1 x 21, 3 x 7, 7 x 3, 21 x 1