74. P is a natural number of at least 6 digits and its left- most digit is 7. When this leftmost digit is removed from P, the number thus obtained is found to be 1/21 times of P. What is the product of the all the nonzero digits of P.

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Q: 4 (ii) 16 | at + 15.

A: Step-1 1)16|a4+15

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A:

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A: We will use standard division algorithms to deduce the given statement.

Q: pls help asap!!!

A: According to guidelines we solve first three subparts when given multiple subparts.

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Q: prove that the one's digit of any integer,n, is the remainder when one divides n by 10.

A:

Q: For this problem, you need the total, n, of the sum of all digits in your student ID. For example,…

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Q: I also found that the expression was divisible by 13 at n=6 and n=10. Is there anyway you could…

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Q: How many zeroes does 188! end with?

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A:

Q: Find the product AB if [2 5 A = 3 9. -21 6 4 and B = -1 6. 1 17 8. -3] 7 8. 2

A: We find the product AB  by using matrix product.