1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045
The answer is 3,050
29
3045 rounded to the nearest thousand is 3000. When rounding a number to the nearest thousand, you look at the hundreds place. If the hundreds place is 5 or greater, you round up; if it is less than 5, you round down. In this case, the hundreds place in 3045 is 0, so we round down to 3000.
3040
No. 189 is only evenly divisible by 3 and 9 (from the set provided). Using the following rules of divisibility on the number 189: Divisible by 2? No - the number is not even Divisible by 3? Yes - the sum of the digits (1 + 8 + 9 = 18) is divisible by 3 Divisible by 4? No - the last two digits are not evenly divisible by 4 Divisible by 5? No - the last digit is not a 0 or a 5 Divisible by 6? No - the number is not even Divisible by 9? Yes - the sum of the digits is divisible by 9 Divisible by 10? No - the number is not divisible by 2 or 5
The GCF is 5. Method: Because 3045 is such a large number, find the prime factors of 50 and check whether any of them divide into 3045. The prime factors of 50 are 2, 5, and 5. 3045 ÷ 5 = 609, which is not divisible by another 5, since it does not end in 5 or 0. Nor is it divisible by 2, since it is not an even number. Therefore, the greatest common factor of 50 and 3045 is 5. (3045 = 3 x 5 x 7 x 29)
It is: 3045
3045
145x21=3045
3045
The GCF is 15.
The answer is 3,050
3045
29
29
It is a composite number.
3045 rounded to the nearest thousand is 3000. When rounding a number to the nearest thousand, you look at the hundreds place. If the hundreds place is 5 or greater, you round up; if it is less than 5, you round down. In this case, the hundreds place in 3045 is 0, so we round down to 3000.