{"system":{"system_id":"us_ccss","public_slug":"us-ccss","label":"US Common Core Math","official_source_urls":["https://thecorestandards.org/Math/","https://thecorestandards.org/standards-in-your-state/"]},"standard":{"system_id":"us_ccss","system_slug":"us-ccss","system_label":"US Common Core Math","code":"CCSS.4.OA.B.4","label":"factors, multiples, prime, composite; identify, calculate, explain.","public_slug":"curratom-us-ccss-4-oa-b-4","route":"/math/standards/us-ccss/curratom-us-ccss-4-oa-b-4","data_json_route":"/math/data/standards/us-ccss/curratom-us-ccss-4-oa-b-4.json","data_markdown_route":"/math/data/standards/us-ccss/curratom-us-ccss-4-oa-b-4.md","skill_count":4,"skills":[{"title":"Array Rows Columns","route":"/math/skills/oa/array-rows-columns","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Factors Basic","route":"/math/skills/oa/factors-basic","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Multiples Basic","route":"/math/skills/oa/multiples-basic","family_name":"Whole-Number Operations and Fact Fluency","standards":[]},{"title":"Prime Composite Basic","route":"/math/skills/oa/prime-composite-basic","family_name":"Whole-Number Operations and Fact Fluency","standards":[]}],"crawler_summary":"CCSS.4.OA.B.4 maps to 4 math skills."}}