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प्रश्न
Which of the following statement is true?
If two numbers are co-prime, at least one of them must be a prime number.
पर्याय
True
False
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उत्तर
False
Example: 4 and 9 are co-prime numbers but both are composite numbers too.
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संबंधित प्रश्न
Which of the following statement is true?
If a number is divisible by both 9 and 10, it must be divisible by 90.
Which of the following statement is true?
If a number exactly divides the sum of two numbers, it must exactly divide the numbers separately.
Use the same rule to fill the hexagons below.

Now you also make your own magic hexagons.

Are they equal?
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Number 7N + 1 will leave remainder 1 when divided by 7.
If N ÷ 5 leaves remainder 3 and N ÷ 2 leaves remainder 0, then N ÷ 10 leaves remainder 4.
A five-digit number AABAA is divisible by 33. Write all the numbers of this form.
