Q: What three numbers do you multiply together to get 210?

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221

There are many possible answers. 1, 2 and 105 is one possible triplet.

2 and 210

643

22998

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221

210

The four smallest prime numbers are 2, 3, 5 and 7. Multiply them together. You'll get 210.

2x25

There are many possible answers. 1, 2 and 105 is one possible triplet.

Because the four smallest prime numbers are 2, 3, 5, and 7. If you multiply these four together you get 210 (which makes 210 the smallest number divisible by four unique prime numbers).

Start by factoring each of the numbers. Then eliminate duplicate factors, and multiply together whatever factors are left. 42=2x3X7 30=2x3x5 Since the 2 and 3 are duplicated, eliminate the duplications, and multiply 2X3X5X7=210. Answer: 210

2 and 210

210

643

22998

First, you make a factor tree for both 36 and 210 and find the prime factorization of both numbers.36: 2x2x3x3210:2x3x5x7Then, you circle the numbers that appear in both factorizations. (I'll make them bold.)36: 2x3x2x3210: 2x3x5x7Lastly, you multiply the 2 numbers that you circled together (only one pair of the 2 numbers; don't multiply 2x3x2x3, just 2x3).2x3=6.The GCF of 36 and 210 is 6.