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Two numbers are relatively prime if and only if they share no common proper factors (other than 1, which is a factor of all numbers). The factors of 4 are 4 and 2, while 7 has no factors other than 1 and itself. Since 4 and 7 have none of the same proper factors, they are relatively prime.

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'4' is NOT a prime , because it is the product of 2 x 2 = 4

'7' is IS a prime , as it has not factors.

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lenpollock

Lvl 16
1y ago
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Q: Are 4 and 7 relatively prime?
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