True, The common factors of 24 and 40 are 1, 2, 4, and 8., 80 is a composite number and a multiple of 20., The numbers 4, 9, and 16 are all perfect squares., A prime number has exactly two factors: 1 and itself., In the number 670, the place value of the digit 7 is seventy., In the expression 2³, the number 3 is called the exponent., False, A composite number has fewer than two factors in total., 2 is a factor of 10, so 2 is a multiple of 10., The perfect square of 8 is equal to 16., In the expression 2³, the number 2 is called the exponent., To find a multiple of 3, you must always look for an odd number., The number 12 is a prime number because it ends in 2.

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