Keywords: Number and the number system

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Across
  1. 2. A diagram using circles (or other shapes) to show the relationship between sets.
  2. 5. Splitting a number into its prime factors.
  3. 6. The digits in a number that contribute to the accuracy of it, starting from the first non-zero digit.
  4. 7. The result when two numbers are multiplied.
  5. 8. The largest factor that will divide into two or more numbers.
  6. 9. A number that has exactly two factors (1 and itself).
Down
  1. 1. The smallest number that is a multiple of two or more numbers.
  2. 3. A prime number that divides exactly into another given number.
  3. 4. A standardised way of writing very large or very small numbers using a number using a number between one and ten multiplied by a power of 10.